Solve this:

Q17. Determine the electric field strength vector if the potential of this field depends on x, y coordinates as V = 10 axy

        (1) 10 a (y i ^  + x j ^ )                                         (2) – 10 a ​[y i ^  + x j ^ ]            

        (3) – a ​[y i ^  + x j ^ ]                                           (4) –10 a ​[x i ^  + y k ^ ]     
 

Dear student,
Electric field strength vector:E=-ddx10axyi^-ddy10axyj^-ddz10axyk^   =-10ay  i^ -10ax  j^    =-10ayi^ +10axj^
Regards

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